Feeding device



H. M. ROSS FEEDING DEVICE Dec. 31, 1929.

3 Sheeds-Sheet Filed June 1928 awuemtoz (Ternary Dec. 31, 1929. oss 1,741,738

FEEDING DEVICE Filed June 8, 1928 v 5.Sheets-Sheet 2 Fig. 2

Dec. 31, 1929. H. M. ROSS 1,741,738

FEEDING DEVICE Filed June 8, 1928 5 Sheets-Sheet 5 Fig. 4 27 34 2 35 3 36' 1' F/Lg. 5

5'- Q as 38 Z 24 avwemtoz Patented. Dec. 31, 1929 UNITED sm'nzs PATENT OFFICE HUGH IL ROSS, OF RICHMOND HILL, NEW YORK, ASSIGNOR TO ADRIANCE- MACHINE WORKS, INC., OF BROOKLYN, NEW YORK, A CORPORATION OF NEW YORK FEEDING DEVICE Application filed June 8,

This invention relates to feedin devices and has for an object an improved evice for feeding blanks or the like to the die block of a punch press or other similar machine.

According to this invention, a continuously rotating table is mounted on the bed which supports the die block of the press and a guide chute overlies the table. Blanks or the like inserted in one end of the chute contact with the plate and are fed along the chute. At the opposite end of the chute there is provided a slide having a socket to receive a blank from the chute when the slide is in retracted position. The slide is provided with a pivoted finger arranged to engage a blank in thevsocket. Means are provided to cause the fin er to apply pressure to the blank as the slide moves forward. During the rearward movement of the slide the finger is lifted to permit entry of another blank into the socket. The pressure applied by the finger presses the blank into position on thedie block when the blank moves off the rotating table. Other objects, novel features and advantages of this invention will be apparent from the following specification and accompanying drawings, wherein Figure 1 is a side elevation of a punch press embodyingv the invention.

Figure 2 is an enlarged section on the line 22 of Fig. 1.

Figures 3, 4 and 5 are sections taken on the lines 33, 4-4 and 5--5 respectively of Fig. 2.

In Fig. 1, 10 designates the frame of the press in the upper end of which is mounted the operating shaft 11 for the reciprocating die punch 12 and which is equipped with the fly wheel 13. 14 designates the .bed for supporting the die block 15. All of these above enumerated elements are common to punch presses and require no further description.

A horizontal annular table 16 is supported by a pulley 16 which is mounted for rotation about the vertical shaft 17. This table is caused to rotate by means of a belt 18 or the like which passes around pulley 16", pulleys 19 supported by the bed 14 and a pulley 20 on the shaft 11. A guide chute 21 overlies 1928. Serial No. 283,911.

the table 16, with one end extending toward the front of the press and the other end terminating intermediate the die block 15 and the axis of the table. Blanks or the like fed into the front end of the chute are carried through frictional contact with the table along the chute and discharged from the opposite end.

A plate or the like 22 has a cylindrical projection extending through the central aperture of the table 16 and into a recess in the pulley 16 and rests upon the upper end of the shaft 17. The plate 22 is secured to the shaft 17 by means of a bolt 23 or the like I on the support 28. The lower end of the lever 27 is connected to an arm 26* carried by and connected to the slide 26 and the upper end is provided with a roller 29 which extends into a cam groove 30 provided in a wheel, drum or the like mounted on the main operating shaft 11 of the press. The slide is arranged to reciprocate across the inner end of the chute 21.

A socket 31 is provided in the end of the slide facing the die block, the wall of the socket adjacent the chute being of less length than the other wall. When the slide 26 is in its retracted position, a blank or the like may escape from the chute 21 and rest against the longer wall of the socket 31. A spring actuated gate 32 is carried by the chute 21 and prevents the escape of a blank from the socket. This gate is engaged by the shorter wall of the socket when the slide moves forward and is then swung out of the way.

A finger 33 is rigidly connected at one end to a shaft 33 pivotally mounted in a head 26 and its free end extends towards the front 'end of the slide 26. It is of such length that vided with a roller 37 which engages the inclined upper surface of a guide 38. This guide is so arranged that, when the slide is in retracted position, the free end of the lever 33 is elevated but is permitted to move downwardly under the influence of the spring-pressed plunger 35 as the slide advances. As the slide retracts, the free .end of the lever 33 is again lifted.

The operation of the device is as follows: The table 16 is continuously rotated and blanks or the like are fed into the chute 21 by hand or from a hopper as rapidly as they are fed out. The frictional contact between the table 16 and the blanks causes the latter to move along the chute whenever such movement is permitted. The slide 26 is caused to reciprocate upon rotation of the shaft 26 and its operating cam is so designed that the slide moves forward as the punch 12 is lifted and moves rearwardly as the punch 12 descends. When the slide is in its forward position, it closes the end of the chute21. When it is in its retracted position, a blank may escape from the end of the chute but is carried around by the table until it comes to rest against the longer wall of the socket 31. The blank is prevented from moving out of this position by the gate 32. As the slide moves forward, the blank remains stationary until embraced by both arms of the socket 31, after which it moves with the slide. The short arm of the slide engages the gate 32 and swings it about its axis. During the forward movement of the slide, the roller 3'? rides down the incline 38, thus permitting pressure to be applied to the blank by the finger 33, this pressure being supplied by the springpresscd plunger 35. As the blank approaches the die block, it passes olt the table 16 and is pressed down into position on the die block by means of the finger 33. The slide then is withdrawn and on its rearward movement the finger is lifted by virtue of the engagement of the roller 33 with the incline 38 so that, when its retracted position is reached, thd finger is suiiiciently elevated to permit another blank to slide under it into engage ment with the longer wall of the socket 31. The gate 32, which was swung out of position by the tor-Ward movement of the slide 26, now resumes its initial position.

It is apparent, of course, that various modifications may be made in the structural details of the apparatus above disclosed without in any way departing from the spirit of the invention as defined in the appended claims.

I claim:

1. In a punch press, a rotating table, a chute overlying said table, a slide having a socket to receive a blank from said chute, means for reciprocating said slide and means for applying pressure to ablank in siilid socket upon forward movement ofsaid s 'de.

2. In a punch press, a continuously rotating table, a guide chute overlying said table, a slide having a socket to receive a blank from said chute when the slide is in retracted position, means for reciprocating said slide and means to apply pressure to a blank in sail socket during forward movement of the sli e.

3. In a punch press, a continuously-rotating table, a guide chute overlying said table, a slide having a socket to receive a blank from said chute when the slide is in retracted position, means for reciprocating said slide, a finger pivotally connected to said slide and having one end extending over said socket, resilient means acting on said finger in a direction to move the end thereof into said socket, and means for permitting movement of the end of said finger into and out of said socket upon reciprocation of said slide.

4. In a punch press, a continuously rotating table, aguide chute overlying said table, a slide having a socket to receive a blank from said chute when the slide is in retracted position, means for reciprocating said slide, a finger pivotally connected to said slide and having one end extending over said socket, a guide member having an inclined surface, and means connected to said finger to engage said guide for causing oscillatory movement of the end of said finger upon reciprocation of said slide.

5. In a. punch press a slide having a socket to receive a blank or the like, means for reciproacting said slide and means movable with said slide for applying pressure to a blank in said socket upon movement of said slide in one direction.

6. In a punch press a slide having a socket to receive a blank or the like, means for re ciprocating said slide, a finger pivotally connected to said slide and having one end arranged to engage a blank or the like in said socket, resilient means acting on said finger in a direction to move the end thereof into engagement with a blank in said socket and means for permitting movement of the end of i said finger under the action of said spring upon movement of said slide in one direction and moving finger against the action of said spring upon movement of the slide in the opposite direction.

7. In a punch press a slide having a socket to receive a blank or the like, means for reciprocating said slide, a finger pivotally connected to said slide and having one end arranged to engage a blank or the like in said socket, a. stationary guide member having an inclined surface and means connected to said finger to engage said guide to cause oscillagpi of said finger upon reciprocation of said e. 8. In a punch press a slide having a socket means for permitting movement of the finger in said direction during movement of the slide in one direction and effecting movement of the finger in the opposite direction upon movement of the slide in the opposite direction.

10. In a punch press acontinuously rotat-- ing table, a guide chute overlying said table, a slide having a socket to receive a blank or the like from said chute when the slide is in retracted position, means for reciprocating said slide, a finger pivotally connected to said slide and adapted to engage a blank or the like arranged in said socket, resilient means for moving said finger in one direction and means for permittingniovement of the finger in said direction upon forward movement of said slide and efiecting movement of the finger in the opposite direction upon rear-.

ward movement of said slide.

11. In a punch press, a slide havinga socket to receive a blank or the like, means for reciprocating said slide, a finger pivotally connected to said slide and arranged to engage a blank or the like in said socket, resilient means for causing said finger to apply pressure to said blank during forward movement of the slide and means for moving said finger against the action of said resilient means during rearward movement of said slide.

12. In a punch press a continuously rotating table, a guide chute overlying said table, a slide having a socket to receive a blank from said chute when the slide is in retracted position, means for reciproating said slide, a finger pivotally connected to said slide and arranged to engage a blank or the like in said socket, resilient means for causing said finger to apply pressure to said blank during forward movement of the slide and means for moving said finger against the action of said resilient means during rearward movement of said slide.

13. In a press having a die block and punch, means movable toward and away from the die block for carrying a blank into position, to be operated upon, means to apply pressure to a blank in said carrier means during the movement thereof toward said die block and means to overcome said pressure applying means during the movement of said carrier means away from the die block.

14. In a press having a die block and punch, means movable toward and away from the die block for carrying a blank into position to be operated upon, means to apply pressure to a blank in said carrier means during the movement thereof toward said die block and means to overcome said pressure applying means during the movement of said carrier means away from the die block, a continuously rotating table and a guide chute overlying said table, said guide chute being arranged to deliver a blank or the like to said carrier means when the latter is in its retracted position.

In testimony whereof, I have signed my name to this specification.

HUGH M. ROSS. 

